COVID-19 update: The observatories have mostly returned to normal operations but travel restrictions remain, which impacts PI instruments. The TAC encourages proposals for instruments that can be operated in service-observing, queue, or remote-observing modes, which is essentially every instrument except M2FS, PISCO, and MagAO.
6.5m MMT telescope, located on Mt Hopkins in Arizona. Approximately 26 dark + 13 grey + 26 bright nights are available per 6 month semester; summer shutdown impacts July and August.
6.5m Magellan telescopes, located on Las Campanas in Chile. Approximately 21 dark + 11 grey + 21 bright nights, evenly split between the two telescopes, are available per 6 month semester. Instruments are linked to a specific telescope.
Fred Lawrence Whipple Observatory (FLWO), located on Mt Hopkins in Arizona. The 1.2m telescope is dedicated to imaging; the 1.5m telescope is dedicated to spectroscopy. Approximately 72 dark + 36 grey + 72 bright nights are available on each telescope per 6 month semester, minus 30 nights in B semester due to August shutdown.
- MMT and FLWO instruments are mostly run in queue mode, as indicated below. For instruments run in a queue, PI's submit their targets before the scheduled observing run; observations are obtained by observers at the telescope.
- Magellan instruments, with two exceptions, are not queue-scheduled. That said, a service observer is now available to CfA PIs; travel to Magellan is no longer required. The expectation is that the service observer will do the observing unless PIs choose otherwise.
|Optical||KeplerCam - CCD imager||YES||YES|
|Optical||FAST - moderate dispersion single-slit spectrograph||YES||YES|
|TRES - high dispersion single-fiber echelle spectrograph||YES||YES|
|Optical||Binospec - moderate dispersion multi-slit spectrograph and imager||YES||YES|
|Hectospec - moderate dispersion 300-fiber spectrograph||YES*||YES|
|Hectochelle - high dispersion 240-fiber echelle spectrograph||YES*||YES|
|Blue Channel - moderate dispersion single-slit spectrograph||YES||no|
|MMT Cam - small field-of-view imager||YES||YES|
|SPOL - imaging spectropolarimeter||Contact PI||no|
|Near-IR||MMIRS - multi-slit spectrograph and imager||YES||YES|
|ARIES - adaptive optics imager and spectrograph||no**||no|
|MMT-Pol - imaging polarimeter||no**||no|
* Hectospec/chelle are not scheduled in Dec-Jan because of a low-temperature operational limit.
** MMT Adaptive Optics System is offline for upgrades; it is not expected to be available for proposals until 2023.
|6.5m Magellan I = Baade||Available?||Queue?|
|Optical||IMACS - moderate dispersion multi-slit spectrograph and imager||YES||no|
|MagE - moderate dispersion single-slit echellette spectrograph||YES||no|
|Near-IR||FourStar - wide-field imager||YES||no|
|FIRE - high dispersion single-slit echelle spectrograph||YES||no|
|6.5m Magellan II = Clay|
|Optical||Megacam - wide-field imager||YES||no|
|LDSS-3 - moderate dispersion multi-slit spectrograph||YES||no|
|MIKE - high dispersion single-slit echelle spectrograph||YES||no|
|M2FS - fiber fed multi-object spectrograph (planning) (reductions)||Contact PI*||YES|
|PFS - high dispersion single-slit echelle spectrograph||Contact PI||YES|
|PISCO - parallel imager||no||no|
|Near-IR||MagAO - adaptive optics imager(s)||Contact PI||no|
* Depends on travel restrictions.
[Updated Sept 10, 2021 by WRB.]